<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <style lang="css">
    body {
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      background: #fafafa;
    }

    .shinchou-menu {
      --highlight-text-color: #00ACF0;
      display: flex;
      flex-direction: column;
      list-style-type: none;
    }

    .shinchou-menu li {
      margin: 6px;
    }

    .shinchou-menu li a {
      position: relative;
      display: inline-flex;
      padding: 6px 2px 6px 2px;
      color: black;
      font-size: 1.6em;
      font-weight: 700;
      line-height: 1;
      text-decoration: none;
      overflow: hidden;
    }

    .shinchou-menu li a::before {
      position: absolute;
      content: '';
      top: 0;
      left: 0;
      z-index: -2;
      width: 100%;
      height: 100%;
      background: black;
    }

    .shinchou-menu li a:hover span {
      color: white !important;
      text-shadow: 0 0 10px var(--highlight-text-color);
    }

    .shinchou-menu li a span {
      position: relative;
      margin: 0 5px 0 4px;
      transition: 0.3s;
    }

    .shinchou-menu li a span.highlight::before {
      position: absolute;
      content: '';
      top: -3px;
      left: -3px;
      bottom: -3px;
      right: -3px;
      z-index: -1;
      background: var(--highlight-text-color);
    }

    .shinchou-menu li a span:not(.highlight) {
      color: var(--highlight-text-color);
    }
  </style>
</head>

<body>
  <ul class="shinchou-menu">
    <li><a href="#">ニュース</a></li>
    <li><a href="#">ストーリー</a></li>
    <li><a href="#">スターフ＆キャスト</a></li>
    <li><a href="#">キャラクター</a></li>
    <li><a href="#">放送·配信情報</a></li>
  </ul>
</body>
<script>
  var shinchouMenuLinks = document.querySelectorAll(".shinchou-menu li a");
  shinchouMenuLinks.forEach(function (link)
  {
    var letters = link.textContent.split("");
    link.textContent = "";
    letters.forEach(function (letter, i)
    {
      var span = document.createElement("span");
      span.textContent = letter;
      if (i < 2) {
        span.className = "highlight";
      }
      span.style.transitionDelay = i / 10 + "s";
      link.append(span);
    });
  });
</script>

</html>